or more units are extended in front of the rack on the slides. You must also
consider the weight of any other device that is installed in the rack. A crush
hazard exists and can cause serious injury should the rack tilt forward.
■
Check temperature
: When the media server is installed in an equipment rack,
the temperature must be in the range of 5C (41F)- 40C (104F).Extreme
fluctuations in temperature can cause a variety of problems for the media server.
■
Check ventilation
: The equipment rack must provide sufficient airflow to the
front of the media server to maintain proper cooling. The rack must also include
ventilation sufficient to exhaust a maximum of 2550 BTUs (British Thermal Units)
per hour for the NetBackup media server.
The rack that is selected and the ventilation that is provided must be suitable
to the environment in which the equipment is used.
■
Main AC power must be accessible
: The AC power cord(s) is considered the
main disconnect for the device and must be readily accessible when installed.
If the individual power cord(s) are not readily accessible for disconnection, you
must install an AC power disconnect for the entire rack unit. This main disconnect
must be readily accessible, and it must be labeled as controlling power to the
entire rack unit.
■
Grounding the rack installation
: To avoid the potential for an electrical shock
hazard, you must include a third wire safety ground conductor with the rack
installation. The rack itself must have a proper grounding if the media server
power cord is plugged into the AC outlet of the rack. The media server must be
plugged into a properly grounded AC outlet. You must provide additional, proper
grounding for the rack and other devices that are installed in the rack.
■
Overcurrent protection
: The power supplies contain internal overcurrent
protection. If power draw increases, the power supplies shut down. Hardware
monitoring utilities such as the web UI show alerts that indicate problems in the
power supply.
The following values are based on power supply ratings in the various devices.
Appliance, depending on power source input current:
■
100VAC to 127VAC @ 9.2A
■
200VAC to 240VAC @ 4.4A
Symantec Storage System:
■
100VAC to 127 VAC @ 2.972A
■
200VAC to 240VAC @ 1.756A
See
on page 28.
35
Maintenance guidelines
General rack installation guidelines